<section class="power">
  <div class="main">
    <div class="slice">
      <img src="./static/images/shengnan_15.jpg" alt=""> </div>
    <div class="slice">
      <img src="./static/images/shengnan_16.jpg" alt=""> </div>
    <div class="slice">
      <img src="./static/images/shengnan_17.jpg" alt=""> </div>
    <div class="slice">
      <img src="./static/images/shengnan_18.jpg" alt=""> </div>
    <div class="slice">
      <img src="./static/images/shengnan_19.jpg" alt=""> </div>
    <div class="slice">
      <img src="./static/images/shengnan_20.jpg" alt=""> </div>
    <div class="slice">
      <img src="./static/images/shengnan_21.jpg" alt=""> </div>
  </div>
</section>